Communications Time And Turn Around Time - Omron V680-CA1D User Manual

Communications Time and Turn Around Time

• The TAT (Turn Around Time) includes the communications time.
• The communication time does not include communications with the host. The communications time
is the time required for communications between the Antenna and the Tag. This time is used for refer-
ence when calculating the movement speed for AUTO commands.
Example:
Command
• Communications Time
1
• TAT
1
Communications time (ms) N: number of
Read T = 1.4 N + 114
Write T = 2.7 N + 284
• The TAT graph data shown here is an example for a V680-CA1D/CA2D Controller communicating with a host with a
baud rate of 9,600 bps, 1 start bit, data length of 7 bits, 2 stop bits, even parity, and no spaces between characters.
• The number of TAT data bytes is the number of bytes when ASCII is specified as the code.
Communications time
32 64 96 128
Number of processing data bytes
Writing
32 64 96 128
Number of processing data bytes
processing bytes
Response
Writing
Reading
160 192 224
Reading
160 192 224
TAT (ms) N: number of processing bytes
T = 2.6 N + 140
T = 3.9 N + 310
Heat-resistive RFID System
Section 6
Appendices
256
256
User's Manual
99